Stacked core disassembling device and method

Abstract

The invention discloses a stacked core disassembling device and method, and relates to the technical field of new energy lithium batteries, and the stacked core disassembling device comprises a suction cup assembly, a feeding assembly, a diaphragm disassembling assembly and a recognition device; the suction cup assembly comprises first linear driving mechanisms, second linear driving mechanisms, suction cups, an upper mounting plate and a lower mounting plate, the upper mounting plate is mounted at the driving ends of the first linear driving mechanisms, and the second linear driving mechanisms are mounted at the two ends, corresponding to the pole piece stripping direction, of the upper mounting plate correspondingly; the driving end of each second linear driving mechanism is rotationally connected with the lower mounting plate, and the multiple suction cups are mounted on the lower mounting plate. The diaphragm disassembling assembly is used for winding and disassembling the diaphragm. The device has the advantages that the device is provided with the suction cup assembly for simulating the action of manually disassembling the pole piece, so that the problem of difficult disassembly caused by adhesion of the pole piece to the diaphragm in the disassembly process of the viscous lamination is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy lithium batteries, and in particular to a core stacking disassembly device and method. Background Art

[0002] With the rapid development of the new energy vehicle industry, the demand for laminated batteries is increasing. During the production process of laminated cores, a large number of defective laminated cores will appear. These defective laminated cores need to be disassembled and their positive / negative electrodes need to be recycled. When disassembling the sticky laminated cores, the electrodes are easily adhered to the diaphragms; there is also static electricity between the electrodes and the diaphragms, making it difficult to separate the electrodes and the diaphragms; and the disassembled diaphragms are also difficult to discard.

[0003] At present, there is no mature stack disassembly device in the industry, and most of the disassembly is done manually, which has low disassembly efficiency and is difficult to meet production needs. In addition, the quality of the recovered electrodes is uneven. The patent document with publication number CN118198562A discloses a method and device for disassembling stacked cores in which electrodes are in an independent state in a multi-stack battery cell. The diaphragm, positive electrode and negative electrode in the multi-stack battery cell are identified, and the stack disassembly is performed in different ways based on the identification results. The above-mentioned stack disassembly device is only applicable to the case where there is no adhesion between the negative electrode and the diaphragm. When it is used in the case where there is adhesion between the negative electrode and the diaphragm, the suction cup assembly is prone to sticking the multi-layer diaphragm and the electrode together when sucking the electrode, resulting in disassembly failure. Summary of the invention

[0004] The technical problem to be solved by the present invention is to prevent the pole piece from adhering to the diaphragm during the disassembly process of the adhesive laminate.

[0005] The present invention solves the above technical problems through the following technical means: a core stack disassembly device, comprising a suction cup assembly, a feeding assembly, a diaphragm removal assembly and an identification device, wherein the feeding assembly is used to place the core stack, and the identification device is used to identify whether the top layer of the core stack placed in the feeding assembly is a positive electrode sheet, a negative electrode sheet or a diaphragm;

[0006] The suction cup assembly includes a first linear drive mechanism, a second linear drive mechanism, a suction cup, an upper mounting plate and a lower mounting plate, wherein the upper mounting plate is mounted on the driving end of the first linear drive mechanism, and the second linear drive mechanisms are respectively mounted on both ends of the upper mounting plate corresponding to the stripping direction of the electrode sheet, and the driving ends of each second linear drive mechanism are respectively rotatably connected to the lower mounting plate, and a plurality of suction cups are mounted on the lower mounting plate;

[0007] The diaphragm disassembly assembly is used for winding and disassembling the diaphragm.

[0008] The device solves the problem of difficulty in disassembly caused by the sticky stack of electrodes sticking to the diaphragm during disassembly by setting up a suction cup assembly that simulates the action of human hands removing the electrodes. It greatly improves the disassembly efficiency and product quality and increases the product recycling rate.

[0009] As an optimized technical solution, the suction cup assembly includes a first manipulator, a first rotating axis, a rotating bracket, a positive suction cup assembly and a negative suction cup assembly; the first rotating axis is installed at the end of the first manipulator, and the rotating bracket is installed on the first rotating axis; the positive suction cup assembly and the negative suction cup assembly are respectively installed on the radial sides of the rotating bracket, and the positive suction cup assembly and the negative suction cup assembly both include the first linear drive mechanism, the second linear drive mechanism, a suction cup, an upper mounting plate and a lower mounting plate.

[0010] According to the recognition result of the recognition device, the rotating bracket can be driven by the first rotating axis to rotate and switch the corresponding suction cup assembly to absorb the electrode piece, ensuring that the positive and negative electrode pieces are each absorbed by independent suction cups to avoid cross contamination between the electrode pieces and causing scrap. In addition, a robot arm can be saved, saving development costs.

[0011] As an optimized technical solution, the diaphragm removal assembly includes a second manipulator, a second rotating shaft and a vacuum roller, the second rotating shaft is installed at the end of the second manipulator, and the vacuum roller is installed on the second rotating shaft.

[0012] The vacuum roller can be moved from one end of the diaphragm to the other end under the drive of the second manipulator and rotate and wind the diaphragm under the drive of the second rotating shaft. The outer surface of the vacuum roller is evenly arranged with vacuum adsorption holes. By utilizing the large hardness difference between the diaphragm and the electrode piece, the diaphragm and the electrode piece can be easily separated without lifting the electrode piece. When the second rotating shaft drives the vacuum roller to rotate in the opposite direction, the diaphragm can also be thrown away.

[0013] As an optimized technical solution, the diaphragm removal assembly also includes a diaphragm collection box and an industrial vacuum cleaner, and the dust suction port of the industrial vacuum cleaner is connected to the diaphragm collection box.

[0014] When the diaphragm is thrown away, the diaphragm will often adhere to the vacuum roller due to static electricity. At this time, the adhered diaphragm can be easily sucked into the diaphragm collection box through an industrial vacuum cleaner, solving the problem of difficult diaphragm throwing and easy diaphragm spilling.

[0015] As an optimized technical solution, the feeding assembly includes a lifting mechanism, a feeding clip and a height detection device. The feeding clip is used to place the stacked cores. The lifting end of the lifting mechanism enters the interior of the feeding clip from the bottom and is supported on the bottom of the stacked cores. The height detection device is used to detect the height of the stacked cores.

[0016] The height detection device is used to detect the height of the core stack, and the lifting mechanism is controlled according to the detection result to lift the core stack to an appropriate height for disassembly without human operation, thus realizing automatic detection and control.

[0017] As an optimized technical solution, the feeding assembly also includes a blocking mechanism, which includes a fourth linear drive mechanism and a blocking brush. The fourth linear drive mechanism is installed on the feeding clip, and the blocking brush is installed at the driving end of the fourth linear drive mechanism. The fourth linear drive mechanism can drive the blocking brush to both ends above the stacked core along the pole piece stripping direction.

[0018] When the suction cup assembly absorbs the pole piece, the blocking brush can block the diaphragm underneath to prevent the diaphragm from being lifted up due to excessive viscosity.

[0019] As an optimized technical solution, the feeding assembly also includes a static electricity removal device, and the static electricity removal device is installed on the top of the feeding clip.

[0020] The static electricity removal device can eliminate the static electricity between the pole piece and the diaphragm, reduce the adsorption force between the stacked sheets, and help to separate the stacked sheets.

[0021] As an optimized technical solution, the feeding assembly also includes a dust collector interface, and the dust collector interface is installed on the top of the feeding clip.

[0022] The dust collector interface is used to connect the dust collection pipe of the dust collector to remove the dust pollution generated during the stacking disassembly process to avoid the pole pieces being contaminated and scrapped.

[0023] As an optimized technical solution, the core stack disassembling device also includes a rotating assembly, on which two groups of feeding assemblies are arranged, and the rotating assembly is used to switch the two groups of feeding assemblies between the disassembling station and the feeding station.

[0024] When the stacked cores in one set of feeding components are being disassembled at the disassembly station, the other set of feeding components can be loaded, which is highly efficient.

[0025] A cylindrical battery core disassembly method, using the stacked core disassembly device, comprises the following steps:

[0026] The separator, positive electrode sheet and negative electrode sheet in the stacked core are identified by an identification device, and they are disassembled in different ways according to the identification results;

[0027] When disassembling the diaphragm, a diaphragm disassembly assembly is used to wind and disassemble the diaphragm;

[0028] When disassembling the positive or negative electrode sheet, the first linear drive mechanism drives the suction cup to move downward. After the suction cup reaches the upper surface of the electrode sheet, the second linear drive mechanism at one end lifts it upward, causing the lower mounting plate to tilt and lift one end of the electrode sheet upward, thereby separating the electrode sheet from the diaphragm underneath it.

[0029] This method simulates the manual action of removing the electrode by suction cup assembly, which solves the problem of difficulty in disassembly caused by the electrode sticking to the diaphragm during the disassembly process of sticky laminated sheets, greatly improves the disassembly efficiency and product quality, and increases the product recycling rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the disassembly structure of the core stack disassembly device according to an embodiment of the present invention.

[0031] Figure 2 It is a structural schematic diagram of a rack assembly according to an embodiment of the present invention.

[0032] Figure 3 Schematic diagram of a fastener of a suction cup assembly according to an embodiment of the present invention.

[0033] Figure 4 It is a schematic structural diagram of a feeding assembly according to an embodiment of the present invention.

[0034] Figure 5 It is a schematic structural diagram of the diaphragm assembly dismantled according to an embodiment of the present invention.

[0035] Figure 6 It is a flow chart of a core stacking disassembly method according to an embodiment of the present invention.

[0036] Figure 7 It is a schematic diagram of the structure of the stacked core according to an embodiment of the present invention.

[0037] Figure 8 It is a schematic diagram of the principle of dismantling the diaphragm assembly by winding and dismantling the diaphragm according to the present invention.

[0038] Fig. 9 It is a schematic diagram of the diaphragm throwing method according to an embodiment of the present invention.

[0039] Fig.10 It is a schematic diagram of disassembling the negative electrode sheet of the negative electrode suction cup assembly according to an embodiment of the present invention.

[0040] Fig.11 It is a schematic diagram of disassembling the positive electrode sheet of the positive electrode suction cup assembly according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] like Figure 1 As shown, an embodiment of the present invention discloses a stacked core disassembling device, including a frame assembly 100, a suction cup assembly 200, a loading assembly 300, a diaphragm removal assembly 400, a rotating assembly 500 and a unloading assembly (not shown).

[0043] Two groups of loading assemblies 100 are arranged on the rotating assembly 500, and the rotating assembly 500 is used to switch the two groups of loading assemblies 100 between the disassembly station and the loading station; the loading assembly 300 is used to place the stacked cores, the suction cup assembly 200 is used to disassemble the positive electrode sheets and the negative electrode sheets, and the diaphragm removal assembly 400 is used to wind and disassemble the diaphragm; the unloading assembly includes a positive electrode unloading clip and a negative electrode unloading clip, which are respectively used to load the disassembled positive electrode sheets and negative electrode sheets.

[0044] like Figure 2 As shown, the frame assembly 100 includes a frame 101, an alarm indicator light 102, a touch screen 103, a control switch 104 and an identification device 105; the identification device 105 is installed on the inner top surface of the frame 101 and is located directly above the loading assembly 300, and the identification device 105 is used to identify whether the top layer of the stacked core placed in the loading assembly 300 is a positive electrode sheet, a negative electrode sheet or a diaphragm, and perform the next disassembly action according to the identification result; the identification device 105 adopts an image recognition sensor, and the image recognition sensor can identify and judge according to the color difference between the positive electrode sheet, the negative electrode sheet and the diaphragm, and perform the next action according to the judgment result, with accurate identification and low cost; the alarm indicator light 102, the touch screen 103 and the control switch 104 are all installed on the outside of the frame 101, and are used to control the operation of the stacked core disassembly device.

[0045] like Figure 3As shown, the suction cup assembly 200 includes a first manipulator 201, a first rotating shaft 202, a rotating bracket 209, a positive suction cup assembly 210 and a negative suction cup assembly 220; the first rotating shaft 202 is installed at the end of the first manipulator 201, and the rotating bracket 209 is installed at the lower end of the first rotating shaft 202; the positive suction cup assembly 210 and the negative suction cup assembly 220 are respectively installed on both radial sides of the rotating bracket 209, and according to the recognition result of the recognition device 105, the rotating bracket 209 can be driven by the first rotating shaft 202 to rotate and switch the corresponding suction cup assembly to absorb the electrode piece, thereby ensuring that the positive and negative electrode pieces are each absorbed by independent suction cups, avoiding cross contamination between the electrode pieces and causing scrapping. In addition, a manipulator can be saved, saving development costs.

[0046] The positive electrode suction cup assembly 210 and the negative electrode suction cup assembly 220 both include a first linear drive mechanism 203, a second linear drive mechanism 204, a rotating pin 205, a suction cup 206, an upper mounting plate 207 and a lower mounting plate 208; the first linear drive mechanism 203 is mounted on a rotating bracket 209, the first linear drive mechanism 203 adopts a guide rod cylinder, and the upper mounting plate 207 is mounted on the lower end of the push rod of the first linear drive mechanism 203; the bottom surface of the upper mounting plate 207 corresponds to the two ends of the pole piece stripping direction and is respectively mounted with second linear drive mechanisms 204, two on each side, the second linear drive mechanism 204 adopts a small cylinder, each second linear drive mechanism 204 is mounted on the lower end of the push rod of the first linear drive mechanism 203; The lower ends of the push rods of the driving mechanism 204 are rotatably connected to the lower mounting plate 208 through the rotating pins 205; a plurality of suction cups 206 are mounted on the bottom surface of the lower mounting plate 208, and the first linear driving mechanism 203 can drive the suction cups 206 to move up and down. When the suction cups 206 move downward to the upper surface of the electrode piece, the electrode piece is sucked by negative pressure. At this time, the second linear driving mechanism 204 on one side is lifted upward, and the second linear driving mechanism 204 on the other side remains unchanged, so that the lower mounting plate 208 can be tilted to lift one side of the electrode piece first, simulating the action of manually removing the electrode piece, so that the sticky electrode piece and the diaphragm can be easily separated, thereby solving the problem of disassembling the sticky electrode piece adhering to the diaphragm.

[0047] like Figure 4 As shown, the feeding assembly 300 includes a lifting mechanism, a feeding clip, a blocking mechanism, a height detection device 304, a static electricity removal device 305 and a dust collector interface 308.

[0048] The loading clip is used for placing the stacked cores, and the loading clip includes a limiting bottom plate 302, a limiting side plate 303 and a right-angle limiting structure 310; the limiting side plates 303 are respectively arranged on the front and rear sides above the limiting bottom plate 302, and the limiting side plates 303 are connected to the first waist-shaped hole on the limiting bottom plate 302 through a first connecting piece, and the length direction of the first waist-shaped hole is along the front-to-back direction; the left and right sides of the limiting side plates 303 are respectively arranged with right-angle limiting structures 310, each right-angle limiting structure 310 corresponds to the four corners of the stacked core, and the right-angle limiting structure 310 is connected to the second waist-shaped hole on the limiting side plates 303 through a second connecting piece, and the length direction of the second waist-shaped hole is along the left-right direction; the structure of the loading clip is compatible with the placement of stacked cores of various sizes.

[0049] The lifting mechanism includes a third linear drive mechanism 301 and a lifting plate 309. The third linear drive mechanism 301 adopts a rod motor. The lifting end of the third linear drive mechanism 301 passes through the limiting bottom plate 302 and enters the interior of the loading clip from the bottom. The lifting plate 309 is installed at the lifting end of the third linear drive mechanism 301 and supported at the bottom of the stacked core. The third linear drive mechanism 301 can drive the lifting plate 309 to lift the stacked core.

[0050] The blocking mechanism includes a fourth linear drive mechanism 306 and a blocking brush 307. The fourth linear drive mechanism 306 is installed on the feeding clip. The fourth linear drive mechanism 306 adopts a needle-type cylinder. The blocking brush 307 is installed at the driving end of the fourth linear drive mechanism 306. The fourth linear drive mechanism 306 can drive the blocking brush 307 to reach both ends of the stacked core along the pole piece peeling direction. When the suction cup assembly 200 absorbs the pole piece, the blocking brush 307 can properly block the diaphragm below it to avoid lifting the diaphragm due to excessive viscosity.

[0051] The height detection device 304 uses an optical fiber sensor to detect the height of the core stack, and controls the third linear drive mechanism 301 to work according to the detection result, so as to lift the core stack to a proper height for disassembly without human operation, thereby realizing automatic detection and control.

[0052] The static electricity removal device 305 is installed on the top of the feeding clip. The static electricity removal device 305 adopts an ion wind rod, which can eliminate the static electricity between the pole piece and the diaphragm, reduce the adsorption force between the stacked sheets, and help to separate the stacked sheets.

[0053] The dust collector interface 308 is installed on the top of the feeding clip. The dust collector interface 308 is used to connect the dust suction pipe of the dust collector to remove the dust pollution generated during the disassembly of the stacked sheets to avoid the pole pieces being contaminated and scrapped.

[0054] like Figure 5As shown, the diaphragm removal assembly 400 includes a second manipulator 401, a second rotating shaft 402, a vacuum roller 403, a diaphragm collection box 404 and an industrial vacuum cleaner 405; the second rotating shaft 402 is installed at the end of the second manipulator 401, and the vacuum roller 403 is installed on the second rotating shaft 402. The vacuum roller 403 can be moved from one end of the diaphragm to the other end under the drive of the second manipulator 401 and rotated to wind the diaphragm under the drive of the second rotating shaft 402. The outer surface of the vacuum roller 403 is evenly arranged with vacuum adsorption holes, and the diaphragm and the electrode are connected by the vacuum roller 403. The large hardness difference between them can easily separate the diaphragm and the electrode without lifting the electrode. When the second rotating shaft 402 drives the vacuum roller 403 to rotate in the opposite direction, the diaphragm can also be thrown. The suction port of the industrial vacuum cleaner 405 is connected to the diaphragm collecting box 404. When the diaphragm is thrown, the diaphragm often adheres to the vacuum roller 403 due to static electricity. At this time, the adhered diaphragm can be easily sucked into the diaphragm collecting box 404 through the industrial vacuum cleaner 405, which solves the problems of difficult diaphragm throwing and easy diaphragm spilling.

[0055] like Figure 6 As shown, the embodiment of the present invention further discloses a stacked core disassembly method, which uses the stacked core disassembly device and includes the following steps:

[0056] S1, Figure 7 Taking a stacked core as an example, the positive electrode sheets and negative electrode sheets of the stacked core are stacked alternately and the diaphragm is wrapped on the positive electrode sheet in a U-shaped wrapping manner, the open end of the diaphragm is the A end, and the arc-shaped end of the diaphragm is the B end, and the stacked core is placed in the loading clip of the loading assembly 300;

[0057] S2, start the control switch 104, rotate the feeding clips of one group of feeding assemblies 100 to the disassembly station through the rotating assembly 500, and at the same time start the dust collector, the static electricity removal device 305 and the industrial vacuum cleaner 405;

[0058] S3, the height detection device 304 detects the height of the stacked cores in the feeding clip, and the third linear drive mechanism 301 works to lift the stacked cores to an appropriate height;

[0059] S4, the identification device 105 identifies whether the top layer of the stacked core is a positive electrode sheet, a negative electrode sheet or a separator; when it is identified as a separator, go to step S11; when it is identified as a negative electrode sheet, go to step S21; when it is identified as a positive electrode sheet, go to step S31;

[0060] S11, such as Figure 8 As shown, after the second manipulator 401 drives the vacuum roller 403 to move above the A end, the negative pressure function of the vacuum roller 403 is turned on, and the vacuum roller 403 is driven to rotate by the second rotating shaft 402. The vacuum roller 403 is driven by the second manipulator 401 to move from the A end to the B end. During the movement of the vacuum roller 403, the diaphragm is adsorbed and wound;

[0061] S12, after the identification device 105 identifies whether the top layer of the stacked core is the positive electrode sheet or the negative electrode sheet, the first manipulator 201 drives the suction cup assembly 200 to move to the disassembly station, the first rotating shaft 202 drives the corresponding suction cup assembly to rotate to just above the electrode sheet, and then the first linear drive mechanism 203 drives the suction cup 206 to move downward, and after the suction cup 206 reaches the upper surface of the electrode sheet, the two second linear drive mechanisms 204 near the B end are synchronously lifted upward, so that the lower mounting plate 208 is tilted to lift the B end of the electrode sheet upward, thereby separating the electrode sheet from the diaphragm below it, and then placing the electrode sheet into the corresponding blanking clip;

[0062] S13, such as Fig. 9 As shown, after the vacuum roller 403 delivers the diaphragm to the top of the entrance of the diaphragm collection box 404, the negative pressure function of the vacuum roller 403 is turned off, and the second rotating shaft 402 rotates in the opposite direction to make the vacuum roller 403 loosen the diaphragm, and under the action of the industrial vacuum cleaner 405, the diaphragm is sucked into the diaphragm collection box 404;

[0063] S21, after the first manipulator 201 drives the suction cup assembly 200 to move to the disassembly station, the first rotating shaft 202 drives the negative electrode suction cup assembly 220 to rotate to just above the negative electrode sheet;

[0064] S22, such as Fig.10 As shown, the first linear drive mechanism 203 drives the suction cup 206 to move downward, and at the same time, the fourth linear drive mechanism 306 drives the blocking brush 307 to reach above the B end. After the suction cup 206 reaches the upper surface of the negative electrode sheet, the two second linear drive mechanisms 204 near the B end are lifted upward synchronously, so that the lower mounting plate 208 is tilted to lift the B end of the negative electrode sheet upward, thereby separating the negative electrode sheet from the diaphragm below it.

[0065] S23, the suction cup assembly 200 puts the negative electrode sheet into the negative electrode feeding clip, and returns to step S4;

[0066] S31, after the first manipulator 201 drives the suction cup assembly 200 to move to the disassembly station, the first rotating shaft 202 drives the positive electrode suction cup assembly 210 to rotate to just above the positive electrode sheet;

[0067] S32, such as Fig.11 As shown, the first linear drive mechanism 203 drives the suction cup 206 to move downward, and at the same time, the fourth linear drive mechanism 306 drives the blocking brush 307 to reach above the A end. After the suction cup 206 reaches the upper surface of the positive electrode sheet, the two second linear drive mechanisms 204 near the B end are lifted upward synchronously, so that the lower mounting plate 208 is tilted to lift the B end of the positive electrode sheet upward, thereby separating the positive electrode sheet from the diaphragm below it;

[0068] S33, the suction cup assembly 200 puts the positive electrode sheet into the positive electrode feeding clip, and returns to step S4.

[0069] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A core stack disassembling device, characterized in that: It includes a suction cup assembly, a feeding assembly, a diaphragm removal assembly and an identification device, wherein the feeding assembly is used to place the stacked cores, and the identification device is used to identify whether the top layer of the stacked cores placed in the feeding assembly is a positive electrode sheet, a negative electrode sheet or a diaphragm; The suction cup assembly includes a first linear drive mechanism, a second linear drive mechanism, a suction cup, an upper mounting plate and a lower mounting plate, wherein the upper mounting plate is mounted on the driving end of the first linear drive mechanism, and the second linear drive mechanisms are respectively mounted on both ends of the upper mounting plate corresponding to the stripping direction of the electrode sheet, and the driving ends of each second linear drive mechanism are respectively rotatably connected to the lower mounting plate, and a plurality of suction cups are mounted on the lower mounting plate; The diaphragm disassembly assembly is used for winding and disassembling the diaphragm.

2. The core stack disassembling device according to claim 1, characterized in that: The suction cup assembly includes a first manipulator, a first rotating shaft, a rotating bracket, a positive suction cup assembly and a negative suction cup assembly; the first rotating shaft is installed at the end of the first manipulator, and the rotating bracket is installed on the first rotating shaft; the positive suction cup assembly and the negative suction cup assembly are respectively installed on the radial sides of the rotating bracket, and the positive suction cup assembly and the negative suction cup assembly both include the first linear drive mechanism, the second linear drive mechanism, a suction cup, an upper mounting plate and a lower mounting plate.

3. The core stack disassembling device according to claim 1, characterized in that: The diaphragm removal assembly includes a second manipulator, a second rotating shaft and a vacuum roller. The second rotating shaft is installed at the end of the second manipulator, and the vacuum roller is installed on the second rotating shaft.

4. The core stack disassembling device according to claim 3, characterized in that: The diaphragm removal assembly also includes a diaphragm collection box and an industrial vacuum cleaner, and the dust suction port of the industrial vacuum cleaner is connected to the diaphragm collection box.

5. The core stack disassembling device according to claim 1, characterized in that: The feeding assembly includes a lifting mechanism, a feeding clip and a height detection device. The feeding clip is used to place the stacked cores. The lifting end of the lifting mechanism enters the interior of the feeding clip from the bottom and is supported on the bottom of the stacked cores. The height detection device is used to detect the height of the stacked cores.

6. The core stack disassembling device according to claim 5, characterized in that: The feeding assembly also includes a blocking mechanism, which includes a fourth linear drive mechanism and a blocking brush. The fourth linear drive mechanism is installed on the feeding clip, and the blocking brush is installed at the driving end of the fourth linear drive mechanism. The fourth linear drive mechanism can drive the blocking brush to both ends above the stacked core along the pole piece stripping direction.

7. The core stack disassembling device according to claim 5, characterized in that: The feeding assembly also includes a static electricity removal device, which is installed on the top of the feeding clip.

8. The core stack disassembling device according to claim 5, characterized in that: The feeding assembly also includes a dust collector interface, which is installed on the top of the feeding clip.

9. The core stack disassembling device according to claim 1, characterized in that: The core stack disassembling device further comprises a rotating assembly, on which two groups of feeding assemblies are arranged, and the rotating assembly is used to switch the two groups of feeding assemblies between the disassembling station and the feeding station.

10. A method for disassembling cylindrical battery cells, using the stacked core disassembling device according to any one of claims 1 to 9, characterized in that: The following steps are involved: The separator, positive electrode sheet and negative electrode sheet in the stacked core are identified by an identification device, and they are disassembled in different ways according to the identification results; When disassembling the diaphragm, a diaphragm disassembly assembly is used to wind and disassemble the diaphragm; When disassembling the positive or negative electrode sheet, the first linear drive mechanism drives the suction cup to move downward. After the suction cup reaches the upper surface of the electrode sheet, the second linear drive mechanism at one end lifts it upward, causing the lower mounting plate to tilt and lift one end of the electrode sheet upward, thereby separating the electrode sheet from the diaphragm underneath it.

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